func main()
	var a: int :: cui@inputInt()
	var b: int :: cui@inputInt()
	var sum: int :: a + b
	
	var factors: []int :: math@primeFactors(sum)
	var factorsA: []int :: math@primeFactors(a)
	var factorsB: []int :: math@primeFactors(a)
	var ans: int :: 1
	for i(0, ^factors - 1)
		for j(0, ^factorsA - 1)
			if(factors[i] = factorsA[j])
				do factors[i] :: 1
				do ans :* factorsA[j]
			end if
		end for
	end for
	for i(0, ^factors - 1)
		for j(0, ^factorsB - 1)
			if(factors[i] = factorsB[j])
				do factors[i] :: 1
				do ans :* factorsB[j]
			end if
		end for
	end for
	do cui@print("\{ans}\n")
end func